Muscles of the shoulder and axilla Prof. Abdulameer Al-Nuaimi E-mail: a.al-nuaimi@sheffield.ac.uk abdulameerh@yahoo.com

medially: serratus anterior and by the ribcage superiorly: by the outer border of first rib, superior border of scapula, and posterior border of clavicle medially: serratus anterior and by the ribcage anteriorly: by the pectoralis major, minor, and subclavius posteriorly: by the subscapularis above, and teres major and latissimus dorsi below laterally: by the intertubercular sulcus floor/base: by the skin (visible surface of axilla) Boundaries of the axilla subclavvius

Muscles connecting the upper limb to the trunk (anterior group) Contents of the axilla Axillary lymph nodes and fat Muscles connecting the upper limb to the trunk (anterior group)

Muscles connecting the upper limb to the trunk (anterior group)

Muscles connecting the upper limb to the trunk (posterior group) Trapezius, Levator scapulae, Rhomboid major, Rhomboid minor, and Latissimus dorsi muscles Levator scapulae Tubercle on the Scapular spine

Scapulohumeral muscles Deltoid , Teres major, and cuff muscles (Supraspinatus, infraspinatus, Subscapularis, and teres minor muscle) Triseps muscle

Circumflex Scapular artery Teres maj Long head Triceps Dorsal surface of shoulder Teres major

Muscles of the arm

Muscles of the arm

Lateral head Long head

Muscles of the arm

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